Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1996-06-18
1998-05-05
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
411437, 362421, F16B 3704
Patent
active
057465592
ABSTRACT:
A self-locking nut fitted into a fitting hole of a reflector with which an aiming screw engages for adjusting an inclination angle of a reflector of a vehicular lamp, the self-locking nut comprising: a nut leading portion having slits extending in radius direction; a flange arranged below said nut leading portion; a fitting portion formed below said flange, said fitting portion having slits extending in radius direction and a pair of legs for fitting into the fitting hole of the reflector, said pair of legs being elastically expandable and having a wedge shape; a shaft hole having an inner surface, said shaft hole passing through the nut leading portion, the flange and the fitting portion in vertical direction; and a threaded portion formed on the inner surface of said shaft hole engageable with the aiming screw, the threaded portion comprising: first grooves extending from said slit of said fitting portion; second grooves positioned perpendicular to said slit of said fitting portion; a divided circumferential portion divided in the circumferential direction by said first and second grooves; and an entire circumferential portion having a circular shape in section, said entire circumferential portion being positioned at said fitting portion, wherein a pitch diameter of said entire circumferential portion being slightly smaller than that of the aiming screw.
REFERENCES:
patent: 4503486 (1985-03-01), Makita
patent: 4657458 (1987-04-01), Woller
patent: 5003436 (1991-03-01), Yamada
patent: 5139380 (1992-08-01), Reynolds
Koito Manufacturing Co. Ltd.
Saether Flemming
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